Binder spine hinge



FIG. 1 is a side, top, perspective view of binder spine hinge.

FIG. 2 is a left side view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a front view of the binder spine hinge with the notebook in an open position.

The broken lines in the drawings illustrate portions of the binder spine hinge which form no part of the claimed design. 

CLAIM The ornamental design for binder spine hinge, as shown and described. 